> On 18 Aug 2021, at 3:01 pm, post...@ptld.com wrote: > >> A useful rubric to keep in mind is: >> * There's no such thing as outbound mail, >> all mail comes in, and then it goes out... >> Any notion of incoming or outgoing is a mental model you overlay on >> your use of the Postfix MTA, the actual MTA is just a message switch. >> The expansion of virtual aliases happens for all recipient addresses >> that transit the switch. > > Got it, thanks for the explanation.
For further details see: http://www.postfix.org/ADDRESS_REWRITING_README.html http://www.postfix.org/ADDRESS_REWRITING_README.html#receiving http://www.postfix.org/ADDRESS_REWRITING_README.html#delivering in general, unless there's a compelling reason to read external guides, use the documentation at: http://www.postfix.org/documentation.html starting with the topics under "General configuration": http://www.postfix.org/BASIC_CONFIGURATION_README.html http://www.postfix.org/STANDARD_CONFIGURATION_README.html http://www.postfix.org/ADDRESS_REWRITING_README.html ... For parameter reference see: http://www.postfix.org/postconf.5.html#<parameter_name> -- Viktor.